Stimulation of Gi-coupled receptors leads to the activation of mitogen-activated protein
kinases (MAP kinases). In several cell types, this appears to be dependent on the
activation of p21ras (Ras). Which G-protein subunit(s) ...

Transgenic mice were generated with cardiac-specific overexpression of the G protein-coupled
receptor kinase-5 (GRK5), a serine/threonine kinase most abundantly expressed in the
heart compared with other tissues. Animals ...